EP 3478334 B1 20200325 - CONNECTION TEST FOR BLOOD TREATMENT MACHINES II
Title (en)
CONNECTION TEST FOR BLOOD TREATMENT MACHINES II
Title (de)
ANSCHLUSSPRÜFUNG FÜR MASCHINEN ZUR BLUTBEHANDLUNG II
Title (fr)
TEST DE CONNEXION POUR MACHINES DE TRAITEMENT DU SANG II
Publication
Application
Priority
- SE 1650950 A 20160630
- EP 2017065770 W 20170627
Abstract (en)
[origin: WO2018001996A1] A control device for a blood treatment machine performs a connection test (50) by causing the blood treatment machine to switch (51, 53) between a first and a second operating state by reversing a blood pump so as to change a flow direction of blood through both a dialyzer and access devices connected to a patient. Based on an output signal of at least one sensor in the blood treatment machine (52, 54), the control device computes (55) an efficiency change parameter that represents a change in in-vivo clearance of the blood treatment machine during the switch of the blood treatment machine between the first and second operating states. The control device evaluates (56) the efficiency change parameter to jointly detect connection errors at the dialyzer, resulting in co-current flow of treatment fluid and blood through the dialyzer, and at the access devices, resulting in access recirculation of blood.
IPC 8 full level
CPC (source: EP US)
A61M 1/1601 (2013.01 - EP US); A61M 1/1647 (2014.02 - US); A61M 1/3656 (2014.02 - US); A61M 1/3658 (2014.02 - EP); A61M 1/1607 (2014.02 - EP); A61M 1/1609 (2014.02 - EP); A61M 2205/18 (2013.01 - US); A61M 2205/276 (2013.01 - EP); A61M 2205/3334 (2013.01 - US); A61M 2205/3368 (2013.01 - US); A61M 2205/70 (2013.01 - EP)
Citation (examination)
US 2013193039 A1 20130801 - KOPPERSCHMIDT PASCAL [DE]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2018001996 A1 20180104; CN 109475672 A 20190315; CN 109475672 B 20210309; EP 3478334 A1 20190508; EP 3478334 B1 20200325; JP 2019519263 A 20190711; JP 6991155 B2 20220112; US 11433167 B2 20220906; US 2020306437 A1 20201001
DOCDB simple family (application)
EP 2017065770 W 20170627; CN 201780041373 A 20170627; EP 17733808 A 20170627; JP 2018555740 A 20170627; US 201716307093 A 20170627